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skia2/tests/DeferredCanvasTest.cpp
robertphillips 9a53fd7c41 Begin kLegacyFontHost_InitType cleanup 
This CL starts the process of pushing kLegacyFontHost_InitType-type SkSurfaceProps up the call stack and out of Skia. It:

 Gets rid of the default SkBaseDevice ctor. This means everyone has to always hand an explicit SkSurfaceProps to it.

 It makes public the SkBitmapDevice creation methods that require SkSurfaceProps.

 Removes (in Skia's code base) all SkBitmapDevice ctor calls w/o SkSurfaceProps.

 Makes the "recording" canvases (e.g., pdf, svg, xps) explicitly not use kLegacyFontHost_InitType.

 Replicates the creating canvas/device's flags on saveLayer devices

BUG=skia:3934

Review URL: https://codereview.chromium.org/1204433002
2015-06-22 09:46:59 -07:00

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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "../src/image/SkImagePriv.h"
#include "../src/image/SkSurface_Base.h"
#include "SkBitmap.h"
#include "SkBitmapProcShader.h"
#include "SkDeferredCanvas.h"
#include "SkGradientShader.h"
#include "SkShader.h"
#include "SkSurface.h"
#include "Test.h"
#include "sk_tool_utils.h"
#if SK_SUPPORT_GPU
#include "GrContextFactory.h"
#else
class GrContextFactory;
#endif
static const int gWidth = 2;
static const int gHeight = 2;
static void create(SkBitmap* bm, SkColor color) {
bm->allocN32Pixels(gWidth, gHeight);
bm->eraseColor(color);
}
static SkSurface* createSurface(SkColor color) {
SkSurface* surface = SkSurface::NewRasterN32Premul(gWidth, gHeight);
surface->getCanvas()->clear(color);
return surface;
}
static SkPMColor read_pixel(SkSurface* surface, int x, int y) {
SkPMColor pixel = 0;
SkBitmap bitmap;
bitmap.installPixels(SkImageInfo::MakeN32Premul(1, 1), &pixel, 4);
SkCanvas canvas(bitmap);
SkPaint paint;
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
surface->draw(&canvas, -SkIntToScalar(x), -SkIntToScalar(y), &paint);
return pixel;
}
class MockSurface : public SkSurface_Base {
public:
MockSurface(int width, int height) : SkSurface_Base(width, height, NULL) {
clearCounts();
fBitmap.allocN32Pixels(width, height);
}
SkCanvas* onNewCanvas() override {
return SkNEW_ARGS(SkCanvas, (fBitmap));
}
SkSurface* onNewSurface(const SkImageInfo&) override {
return NULL;
}
SkImage* onNewImageSnapshot(Budgeted) override {
return SkNewImageFromBitmap(fBitmap, true, &this->props());
}
void onCopyOnWrite(ContentChangeMode mode) override {
if (mode == SkSurface::kDiscard_ContentChangeMode) {
fCOWDiscardCount++;
} else {
fCOWRetainCount++;
}
}
void onDiscard() override {
fDiscardCount++;
}
void clearCounts() {
fCOWDiscardCount = 0;
fCOWRetainCount = 0;
fDiscardCount = 0;
}
int fCOWDiscardCount;
int fCOWRetainCount;
int fDiscardCount;
SkBitmap fBitmap;
};
static void TestDeferredCanvasWritePixelsToSurface(skiatest::Reporter* reporter) {
SkAutoTUnref<MockSurface> surface(SkNEW_ARGS(MockSurface, (10, 10)));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
SkBitmap srcBitmap;
srcBitmap.allocPixels(SkImageInfo::Make(10, 10, kRGBA_8888_SkColorType, kUnpremul_SkAlphaType));
srcBitmap.eraseColor(SK_ColorGREEN);
// Tests below depend on this bitmap being recognized as opaque
// Preliminary sanity check: no copy on write if no active snapshot
// Discard notification happens on SkSurface::onDiscard, since no
// active snapshot.
surface->clearCounts();
canvas->clear(SK_ColorWHITE);
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->flush();
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 1 == surface->fDiscardCount);
// Case 1: Discard notification happens upon flushing
// with an Image attached.
surface->clearCounts();
SkAutoTUnref<SkImage> image1(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->clear(SK_ColorWHITE);
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->flush();
REPORTER_ASSERT(reporter, 1 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
// Case 2: Opaque writePixels
surface->clearCounts();
SkAutoTUnref<SkImage> image2(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
// Case 3: writePixels that partially covers the canvas
surface->clearCounts();
SkAutoTUnref<SkImage> image3(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
// Case 4: unpremultiplied opaque writePixels that entirely
// covers the canvas
surface->clearCounts();
SkAutoTUnref<SkImage> image4(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->writePixels(srcBitmap, 0, 0);
REPORTER_ASSERT(reporter, 1 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->flush();
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
// Case 5: unpremultiplied opaque writePixels that partially
// covers the canvas
surface->clearCounts();
SkAutoTUnref<SkImage> image5(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->writePixels(srcBitmap, 5, 0);
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 1 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->flush();
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
// Case 6: unpremultiplied opaque writePixels that entirely
// covers the canvas, preceded by clear
surface->clearCounts();
SkAutoTUnref<SkImage> image6(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->clear(SK_ColorWHITE);
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->writePixels(srcBitmap, 0, 0);
REPORTER_ASSERT(reporter, 1 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->flush();
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
// Case 7: unpremultiplied opaque writePixels that partially
// covers the canvas, preceeded by a clear
surface->clearCounts();
SkAutoTUnref<SkImage> image7(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->clear(SK_ColorWHITE);
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->writePixels(srcBitmap, 5, 0);
REPORTER_ASSERT(reporter, 1 == surface->fCOWDiscardCount); // because of the clear
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->flush();
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
// Case 8: unpremultiplied opaque writePixels that partially
// covers the canvas, preceeded by a drawREct that partially
// covers the canvas
surface->clearCounts();
SkAutoTUnref<SkImage> image8(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
SkPaint paint;
canvas->drawRect(SkRect::MakeLTRB(0, 0, 5, 5), paint);
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->writePixels(srcBitmap, 5, 0);
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 1 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
surface->clearCounts();
canvas->flush();
REPORTER_ASSERT(reporter, 0 == surface->fCOWDiscardCount);
REPORTER_ASSERT(reporter, 0 == surface->fCOWRetainCount);
REPORTER_ASSERT(reporter, 0 == surface->fDiscardCount);
}
static void TestDeferredCanvasFlush(skiatest::Reporter* reporter) {
SkAutoTUnref<SkSurface> surface(createSurface(0xFFFFFFFF));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
canvas->clear(0x00000000);
// verify that clear was deferred
REPORTER_ASSERT(reporter, 0xFFFFFFFF == read_pixel(surface, 0, 0));
canvas->flush();
// verify that clear was executed
REPORTER_ASSERT(reporter, 0 == read_pixel(surface, 0, 0));
}
static void TestDeferredCanvasFreshFrame(skiatest::Reporter* reporter) {
SkRect fullRect;
fullRect.setXYWH(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(gWidth),
SkIntToScalar(gHeight));
SkRect partialRect;
partialRect.setXYWH(SkIntToScalar(0), SkIntToScalar(0),
SkIntToScalar(1), SkIntToScalar(1));
SkAutoTUnref<SkSurface> surface(createSurface(0xFFFFFFFF));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
// verify that frame is intially fresh
REPORTER_ASSERT(reporter, canvas->isFreshFrame());
// no clearing op since last call to isFreshFrame -> not fresh
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
// Verify that clear triggers a fresh frame
canvas->clear(0x00000000);
REPORTER_ASSERT(reporter, canvas->isFreshFrame());
// Verify that clear with saved state triggers a fresh frame
canvas->save();
canvas->clear(0x00000000);
canvas->restore();
REPORTER_ASSERT(reporter, canvas->isFreshFrame());
// Verify that clear within a layer does NOT trigger a fresh frame
canvas->saveLayer(NULL, NULL);
canvas->clear(0x00000000);
canvas->restore();
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
// Verify that full frame rects with different forms of opaque paint
// trigger frames to be marked as fresh
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(255);
canvas->drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, canvas->isFreshFrame());
}
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(255);
paint.setXfermodeMode(SkXfermode::kSrcIn_Mode);
canvas->drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
}
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
SkBitmap bmp;
create(&bmp, 0xFFFFFFFF);
bmp.setAlphaType(kOpaque_SkAlphaType);
SkShader* shader = SkShader::CreateBitmapShader(bmp,
SkShader::kClamp_TileMode, SkShader::kClamp_TileMode);
paint.setShader(shader)->unref();
canvas->drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, canvas->isFreshFrame());
}
// Verify that full frame rects with different forms of non-opaque paint
// do not trigger frames to be marked as fresh
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(254);
canvas->drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
}
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
// Defining a cone that partially overlaps the canvas
const SkPoint pt1 = SkPoint::Make(SkIntToScalar(0), SkIntToScalar(0));
const SkScalar r1 = SkIntToScalar(1);
const SkPoint pt2 = SkPoint::Make(SkIntToScalar(10), SkIntToScalar(0));
const SkScalar r2 = SkIntToScalar(5);
const SkColor colors[2] = {SK_ColorWHITE, SK_ColorWHITE};
const SkScalar pos[2] = {0, SK_Scalar1};
SkShader* shader = SkGradientShader::CreateTwoPointConical(
pt1, r1, pt2, r2, colors, pos, 2, SkShader::kClamp_TileMode);
paint.setShader(shader)->unref();
canvas->drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
}
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
SkBitmap bmp;
create(&bmp, 0xFFFFFFFF);
bmp.setAlphaType(kPremul_SkAlphaType);
SkShader* shader = SkShader::CreateBitmapShader(bmp,
SkShader::kClamp_TileMode, SkShader::kClamp_TileMode);
paint.setShader(shader)->unref();
canvas->drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
}
// Verify that incomplete coverage does not trigger a fresh frame
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(255);
canvas->drawRect(partialRect, paint);
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
}
// Verify that incomplete coverage due to clipping does not trigger a fresh
// frame
{
canvas->save();
canvas->clipRect(partialRect, SkRegion::kIntersect_Op, false);
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(255);
canvas->drawRect(fullRect, paint);
canvas->restore();
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
}
{
canvas->save();
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(255);
SkPath path;
path.addCircle(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(2));
canvas->clipPath(path, SkRegion::kIntersect_Op, false);
canvas->drawRect(fullRect, paint);
canvas->restore();
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
}
// Verify that stroked rect does not trigger a fresh frame
{
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setAlpha(255);
canvas->drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas->isFreshFrame());
}
// Verify kSrcMode triggers a fresh frame even with transparent color
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(100);
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
canvas->drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, canvas->isFreshFrame());
}
}
class NotificationCounter : public SkDeferredCanvas::NotificationClient {
public:
NotificationCounter() {
fPrepareForDrawCount = fStorageAllocatedChangedCount =
fFlushedDrawCommandsCount = fSkippedPendingDrawCommandsCount = 0;
}
void prepareForDraw() override {
fPrepareForDrawCount++;
}
void storageAllocatedForRecordingChanged(size_t) override {
fStorageAllocatedChangedCount++;
}
void flushedDrawCommands() override {
fFlushedDrawCommandsCount++;
}
void skippedPendingDrawCommands() override {
fSkippedPendingDrawCommandsCount++;
}
int fPrepareForDrawCount;
int fStorageAllocatedChangedCount;
int fFlushedDrawCommandsCount;
int fSkippedPendingDrawCommandsCount;
private:
typedef SkDeferredCanvas::NotificationClient INHERITED;
};
// Verifies that the deferred canvas triggers a flush when its memory
// limit is exceeded
static void TestDeferredCanvasMemoryLimit(skiatest::Reporter* reporter) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
NotificationCounter notificationCounter;
canvas->setNotificationClient(&notificationCounter);
canvas->setMaxRecordingStorage(160000);
SkBitmap sourceImage;
// 100 by 100 image, takes 40,000 bytes in memory
sourceImage.allocN32Pixels(100, 100);
sourceImage.eraseColor(SK_ColorGREEN);
for (int i = 0; i < 5; i++) {
sourceImage.notifyPixelsChanged(); // to force re-serialization
canvas->drawBitmap(sourceImage, 0, 0, NULL);
}
REPORTER_ASSERT(reporter, 1 == notificationCounter.fFlushedDrawCommandsCount);
}
static void TestDeferredCanvasSilentFlush(skiatest::Reporter* reporter) {
SkAutoTUnref<SkSurface> surface(createSurface(0));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
NotificationCounter notificationCounter;
canvas->setNotificationClient(&notificationCounter);
canvas->silentFlush(); // will skip the initial clear that was recorded in createSurface
REPORTER_ASSERT(reporter, 0 == notificationCounter.fFlushedDrawCommandsCount);
REPORTER_ASSERT(reporter, 1 == notificationCounter.fSkippedPendingDrawCommandsCount);
}
static void TestDeferredCanvasBitmapCaching(skiatest::Reporter* reporter) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
NotificationCounter notificationCounter;
canvas->setNotificationClient(&notificationCounter);
const int imageCount = 2;
SkBitmap sourceImages[imageCount];
for (int i = 0; i < imageCount; i++) {
sourceImages[i].allocN32Pixels(100, 100);
sourceImages[i].eraseColor(SK_ColorGREEN);
}
size_t bitmapSize = sourceImages[0].getSize();
canvas->drawBitmap(sourceImages[0], 0, 0, NULL);
REPORTER_ASSERT(reporter, 1 == notificationCounter.fStorageAllocatedChangedCount);
// stored bitmap + drawBitmap command
REPORTER_ASSERT(reporter, canvas->storageAllocatedForRecording() > bitmapSize);
// verify that nothing can be freed at this point
REPORTER_ASSERT(reporter, 0 == canvas->freeMemoryIfPossible(~0U));
// verify that flush leaves image in cache
REPORTER_ASSERT(reporter, 0 == notificationCounter.fFlushedDrawCommandsCount);
REPORTER_ASSERT(reporter, 0 == notificationCounter.fPrepareForDrawCount);
canvas->flush();
REPORTER_ASSERT(reporter, 1 == notificationCounter.fFlushedDrawCommandsCount);
REPORTER_ASSERT(reporter, 1 == notificationCounter.fPrepareForDrawCount);
REPORTER_ASSERT(reporter, canvas->storageAllocatedForRecording() >= bitmapSize);
// verify that after a flush, cached image can be freed
REPORTER_ASSERT(reporter, canvas->freeMemoryIfPossible(~0U) >= bitmapSize);
// Verify that caching works for avoiding multiple copies of the same bitmap
canvas->drawBitmap(sourceImages[0], 0, 0, NULL);
REPORTER_ASSERT(reporter, 2 == notificationCounter.fStorageAllocatedChangedCount);
canvas->drawBitmap(sourceImages[0], 0, 0, NULL);
REPORTER_ASSERT(reporter, 2 == notificationCounter.fStorageAllocatedChangedCount);
REPORTER_ASSERT(reporter, 1 == notificationCounter.fFlushedDrawCommandsCount);
REPORTER_ASSERT(reporter, canvas->storageAllocatedForRecording() < 2 * bitmapSize);
// Verify partial eviction based on bytesToFree
canvas->drawBitmap(sourceImages[1], 0, 0, NULL);
REPORTER_ASSERT(reporter, 1 == notificationCounter.fFlushedDrawCommandsCount);
canvas->flush();
REPORTER_ASSERT(reporter, 2 == notificationCounter.fFlushedDrawCommandsCount);
REPORTER_ASSERT(reporter, canvas->storageAllocatedForRecording() > 2 * bitmapSize);
size_t bytesFreed = canvas->freeMemoryIfPossible(1);
REPORTER_ASSERT(reporter, 2 == notificationCounter.fFlushedDrawCommandsCount);
REPORTER_ASSERT(reporter, bytesFreed >= bitmapSize);
REPORTER_ASSERT(reporter, bytesFreed < 2*bitmapSize);
// Verifiy that partial purge works, image zero is in cache but not reffed by
// a pending draw, while image 1 is locked-in.
canvas->freeMemoryIfPossible(~0U);
REPORTER_ASSERT(reporter, 2 == notificationCounter.fFlushedDrawCommandsCount);
canvas->drawBitmap(sourceImages[0], 0, 0, NULL);
canvas->flush();
canvas->drawBitmap(sourceImages[1], 0, 0, NULL);
bytesFreed = canvas->freeMemoryIfPossible(~0U);
// only one bitmap should have been freed.
REPORTER_ASSERT(reporter, bytesFreed >= bitmapSize);
REPORTER_ASSERT(reporter, bytesFreed < 2*bitmapSize);
// Clear for next test
canvas->flush();
canvas->freeMemoryIfPossible(~0U);
REPORTER_ASSERT(reporter, canvas->storageAllocatedForRecording() < bitmapSize);
// Verify the image cache is sensitive to genID bumps
canvas->drawBitmap(sourceImages[1], 0, 0, NULL);
sourceImages[1].notifyPixelsChanged();
canvas->drawBitmap(sourceImages[1], 0, 0, NULL);
REPORTER_ASSERT(reporter, canvas->storageAllocatedForRecording() > 2*bitmapSize);
// Verify that nothing in this test caused commands to be skipped
REPORTER_ASSERT(reporter, 0 == notificationCounter.fSkippedPendingDrawCommandsCount);
}
static void TestDeferredCanvasSkip(skiatest::Reporter* reporter) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
NotificationCounter notificationCounter;
canvas->setNotificationClient(&notificationCounter);
canvas->clear(0x0);
REPORTER_ASSERT(reporter, 1 == notificationCounter.fSkippedPendingDrawCommandsCount);
REPORTER_ASSERT(reporter, 0 == notificationCounter.fFlushedDrawCommandsCount);
canvas->flush();
REPORTER_ASSERT(reporter, 1 == notificationCounter.fSkippedPendingDrawCommandsCount);
REPORTER_ASSERT(reporter, 1 == notificationCounter.fFlushedDrawCommandsCount);
}
static void TestDeferredCanvasBitmapShaderNoLeak(skiatest::Reporter* reporter) {
// This is a regression test for crbug.com/155875
// This test covers a code path that inserts bitmaps into the bitmap heap through the
// flattening of SkBitmapProcShaders. The refcount in the bitmap heap is maintained through
// the flattening and unflattening of the shader.
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
// test will fail if nbIterations is not in sync with
// BITMAPS_TO_KEEP in SkGPipeWrite.cpp
const int nbIterations = 5;
size_t bytesAllocated = 0;
for(int pass = 0; pass < 2; ++pass) {
for(int i = 0; i < nbIterations; ++i) {
SkPaint paint;
SkBitmap paintPattern;
paintPattern.allocN32Pixels(10, 10);
paintPattern.eraseColor(SK_ColorGREEN);
paint.setShader(SkNEW_ARGS(SkBitmapProcShader,
(paintPattern, SkShader::kClamp_TileMode, SkShader::kClamp_TileMode)))->unref();
canvas->drawPaint(paint);
canvas->flush();
// In the first pass, memory allocation should be monotonically increasing as
// the bitmap heap slots fill up. In the second pass memory allocation should be
// stable as bitmap heap slots get recycled.
size_t newBytesAllocated = canvas->storageAllocatedForRecording();
if (pass == 0) {
REPORTER_ASSERT(reporter, newBytesAllocated > bytesAllocated);
bytesAllocated = newBytesAllocated;
} else {
REPORTER_ASSERT(reporter, newBytesAllocated == bytesAllocated);
}
}
}
// All cached resources should be evictable since last canvas call was flush()
canvas->freeMemoryIfPossible(~0U);
REPORTER_ASSERT(reporter, 0 == canvas->storageAllocatedForRecording());
}
static void TestDeferredCanvasBitmapSizeThreshold(skiatest::Reporter* reporter) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
SkBitmap sourceImage;
// 100 by 100 image, takes 40,000 bytes in memory
sourceImage.allocN32Pixels(100, 100);
sourceImage.eraseColor(SK_ColorGREEN);
// 1 under : should not store the image
{
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
canvas->setBitmapSizeThreshold(39999);
canvas->drawBitmap(sourceImage, 0, 0, NULL);
size_t newBytesAllocated = canvas->storageAllocatedForRecording();
REPORTER_ASSERT(reporter, newBytesAllocated == 0);
}
// exact value : should store the image
{
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
canvas->setBitmapSizeThreshold(40000);
canvas->drawBitmap(sourceImage, 0, 0, NULL);
size_t newBytesAllocated = canvas->storageAllocatedForRecording();
REPORTER_ASSERT(reporter, newBytesAllocated > 0);
}
// 1 over : should still store the image
{
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
canvas->setBitmapSizeThreshold(40001);
canvas->drawBitmap(sourceImage, 0, 0, NULL);
size_t newBytesAllocated = canvas->storageAllocatedForRecording();
REPORTER_ASSERT(reporter, newBytesAllocated > 0);
}
}
static void TestDeferredCanvasImageFreeAfterFlush(skiatest::Reporter* reporter) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
SkAutoTUnref<SkSurface> sourceSurface(SkSurface::NewRasterN32Premul(100, 100));
SkAutoTUnref<SkImage> sourceImage(sourceSurface->newImageSnapshot());
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
canvas->drawImage(sourceImage, 0, 0, NULL);
size_t newBytesAllocated = canvas->storageAllocatedForRecording();
REPORTER_ASSERT(reporter, newBytesAllocated > 0);
canvas->flush();
newBytesAllocated = canvas->storageAllocatedForRecording();
REPORTER_ASSERT(reporter, newBytesAllocated == 0);
}
typedef const void* PixelPtr;
// Returns an opaque pointer which, either points to a GrTexture or RAM pixel
// buffer. Used to test pointer equality do determine whether a surface points
// to the same pixel data storage as before.
static PixelPtr get_surface_ptr(SkSurface* surface, bool useGpu) {
#if SK_SUPPORT_GPU
if (useGpu) {
return surface->getCanvas()->internal_private_accessTopLayerRenderTarget()->asTexture();
} else
#endif
{
return surface->peekPixels(NULL, NULL);
}
}
static void TestDeferredCanvasSurface(skiatest::Reporter* reporter, GrContextFactory* factory) {
SkImageInfo imageSpec = SkImageInfo::MakeN32Premul(10, 10);
bool useGpu = SkToBool(factory);
int cnt;
#if SK_SUPPORT_GPU
if (useGpu) {
cnt = GrContextFactory::kGLContextTypeCnt;
} else {
cnt = 1;
}
#else
SkASSERT(!useGpu);
cnt = 1;
#endif
for (int i = 0; i < cnt; ++i) {
SkSurface* surface;
#if SK_SUPPORT_GPU
if (useGpu) {
GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
continue;
}
GrContext* context = factory->get(glCtxType);
if (NULL == context) {
return;
}
surface =
SkSurface::NewRenderTarget(context, SkSurface::kNo_Budgeted, imageSpec, 0, NULL);
} else
#endif
{
surface = SkSurface::NewRaster(imageSpec);
}
SkASSERT(surface);
SkAutoTUnref<SkSurface> aur(surface);
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface));
SkImage* image1 = canvas->newImageSnapshot();
SkAutoTUnref<SkImage> aur_i1(image1);
PixelPtr pixels1 = get_surface_ptr(surface, useGpu);
// The following clear would normally trigger a copy on write, but
// it won't because rendering is deferred.
canvas->clear(SK_ColorBLACK);
// Obtaining a snapshot directly from the surface (as opposed to the
// SkDeferredCanvas) will not trigger a flush of deferred draw operations
// and will therefore return the same image as the previous snapshot.
SkImage* image2 = surface->newImageSnapshot();
SkAutoTUnref<SkImage> aur_i2(image2);
// Images identical because of deferral
REPORTER_ASSERT(reporter, image1->uniqueID() == image2->uniqueID());
// Now we obtain a snpshot via the deferred canvas, which triggers a flush.
// Because there is a pending clear, this will generate a different image.
SkImage* image3 = canvas->newImageSnapshot();
SkAutoTUnref<SkImage> aur_i3(image3);
REPORTER_ASSERT(reporter, image1->uniqueID() != image3->uniqueID());
// Verify that backing store is now a different buffer because of copy on
// write
PixelPtr pixels2 = get_surface_ptr(surface, useGpu);
REPORTER_ASSERT(reporter, pixels1 != pixels2);
// Verify copy-on write with a draw operation that gets deferred by
// the in order draw buffer.
SkPaint paint;
canvas->drawPaint(paint);
SkImage* image4 = canvas->newImageSnapshot(); // implicit flush
SkAutoTUnref<SkImage> aur_i4(image4);
REPORTER_ASSERT(reporter, image4->uniqueID() != image3->uniqueID());
PixelPtr pixels3 = get_surface_ptr(surface, useGpu);
REPORTER_ASSERT(reporter, pixels2 != pixels3);
// Verify that a direct canvas flush with a pending draw does not trigger
// a copy on write when the surface is not sharing its buffer with an
// SkImage.
canvas->clear(SK_ColorWHITE);
canvas->flush();
PixelPtr pixels4 = get_surface_ptr(surface, useGpu);
canvas->drawPaint(paint);
canvas->flush();
PixelPtr pixels5 = get_surface_ptr(surface, useGpu);
REPORTER_ASSERT(reporter, pixels4 == pixels5);
}
}
static void TestDeferredCanvasSetSurface(skiatest::Reporter* reporter, GrContextFactory* factory) {
SkImageInfo imageSpec = SkImageInfo::MakeN32Premul(10, 10);
SkSurface* surface;
SkSurface* alternateSurface;
bool useGpu = SkToBool(factory);
int cnt;
#if SK_SUPPORT_GPU
if (useGpu) {
cnt = GrContextFactory::kGLContextTypeCnt;
} else {
cnt = 1;
}
#else
SkASSERT(!useGpu);
cnt = 1;
#endif
for (int i = 0; i < cnt; ++i) {
#if SK_SUPPORT_GPU
if (useGpu) {
GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
continue;
}
GrContext* context = factory->get(glCtxType);
if (NULL == context) {
continue;
}
surface =
SkSurface::NewRenderTarget(context, SkSurface::kNo_Budgeted, imageSpec, 0, NULL);
alternateSurface =
SkSurface::NewRenderTarget(context, SkSurface::kNo_Budgeted, imageSpec, 0, NULL);
} else
#endif
{
surface = SkSurface::NewRaster(imageSpec);
alternateSurface = SkSurface::NewRaster(imageSpec);
}
SkASSERT(surface);
SkASSERT(alternateSurface);
SkAutoTUnref<SkSurface> aur1(surface);
SkAutoTUnref<SkSurface> aur2(alternateSurface);
PixelPtr pixels1 = get_surface_ptr(surface, useGpu);
PixelPtr pixels2 = get_surface_ptr(alternateSurface, useGpu);
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface));
SkAutoTUnref<SkImage> image1(canvas->newImageSnapshot());
canvas->setSurface(alternateSurface);
SkAutoTUnref<SkImage> image2(canvas->newImageSnapshot());
REPORTER_ASSERT(reporter, image1->uniqueID() != image2->uniqueID());
// Verify that none of the above operations triggered a surface copy on write.
REPORTER_ASSERT(reporter, get_surface_ptr(surface, useGpu) == pixels1);
REPORTER_ASSERT(reporter, get_surface_ptr(alternateSurface, useGpu) == pixels2);
// Verify that a flushed draw command will trigger a copy on write on alternateSurface.
canvas->clear(SK_ColorWHITE);
canvas->flush();
REPORTER_ASSERT(reporter, get_surface_ptr(surface, useGpu) == pixels1);
REPORTER_ASSERT(reporter, get_surface_ptr(alternateSurface, useGpu) != pixels2);
}
}
static void TestDeferredCanvasCreateCompatibleDevice(skiatest::Reporter* reporter) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
NotificationCounter notificationCounter;
canvas->setNotificationClient(&notificationCounter);
SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10);
SkAutoTUnref<SkSurface> secondarySurface(canvas->newSurface(info));
SkRect rect = SkRect::MakeWH(5, 5);
SkPaint paint;
// After spawning a compatible canvas:
// 1) Verify that secondary canvas is usable and does not report to the notification client.
surface->getCanvas()->drawRect(rect, paint);
REPORTER_ASSERT(reporter, notificationCounter.fStorageAllocatedChangedCount == 0);
// 2) Verify that original canvas is usable and still reports to the notification client.
canvas->drawRect(rect, paint);
REPORTER_ASSERT(reporter, notificationCounter.fStorageAllocatedChangedCount == 1);
}
static void TestDeferredCanvasGetCanvasSize(skiatest::Reporter* reporter) {
SkRect rect;
rect.setXYWH(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(gWidth), SkIntToScalar(gHeight));
SkRect clip;
clip.setXYWH(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(1), SkIntToScalar(1));
SkPaint paint;
SkISize size = SkISize::Make(gWidth, gHeight);
SkAutoTUnref<SkSurface> surface(createSurface(0xFFFFFFFF));
SkAutoTUnref<SkDeferredCanvas> canvas(SkDeferredCanvas::Create(surface.get()));
SkSurface* newSurface = SkSurface::NewRasterN32Premul(4, 4);
SkAutoTUnref<SkSurface> aur(newSurface);
for (int i = 0; i < 2; ++i) {
if (i == 1) {
canvas->setSurface(newSurface);
size = SkISize::Make(4, 4);
}
// verify that canvas size is correctly initialized or set
REPORTER_ASSERT(reporter, size == canvas->getCanvasSize());
// Verify that clear, clip and draw the canvas will not change its size
canvas->clear(0x00000000);
canvas->clipRect(clip, SkRegion::kIntersect_Op, false);
canvas->drawRect(rect, paint);
REPORTER_ASSERT(reporter, size == canvas->getCanvasSize());
// Verify that flush the canvas will not change its size
canvas->flush();
REPORTER_ASSERT(reporter, size == canvas->getCanvasSize());
// Verify that clear canvas with saved state will not change its size
canvas->save();
canvas->clear(0xFFFFFFFF);
REPORTER_ASSERT(reporter, size == canvas->getCanvasSize());
// Verify that restore canvas state will not change its size
canvas->restore();
REPORTER_ASSERT(reporter, size == canvas->getCanvasSize());
// Verify that clear within a layer will not change canvas size
canvas->saveLayer(&clip, &paint);
canvas->clear(0x00000000);
REPORTER_ASSERT(reporter, size == canvas->getCanvasSize());
// Verify that restore from a layer will not change canvas size
canvas->restore();
REPORTER_ASSERT(reporter, size == canvas->getCanvasSize());
}
}
DEF_TEST(DeferredCanvas_CPU, reporter) {
TestDeferredCanvasFlush(reporter);
TestDeferredCanvasSilentFlush(reporter);
TestDeferredCanvasFreshFrame(reporter);
TestDeferredCanvasMemoryLimit(reporter);
TestDeferredCanvasBitmapCaching(reporter);
TestDeferredCanvasSkip(reporter);
TestDeferredCanvasBitmapShaderNoLeak(reporter);
TestDeferredCanvasBitmapSizeThreshold(reporter);
TestDeferredCanvasImageFreeAfterFlush(reporter);
TestDeferredCanvasCreateCompatibleDevice(reporter);
TestDeferredCanvasWritePixelsToSurface(reporter);
TestDeferredCanvasGetCanvasSize(reporter);
TestDeferredCanvasSurface(reporter, NULL);
TestDeferredCanvasSetSurface(reporter, NULL);
}
DEF_GPUTEST(DeferredCanvas_GPU, reporter, factory) {
if (factory != NULL) {
TestDeferredCanvasSurface(reporter, factory);
TestDeferredCanvasSetSurface(reporter, factory);
}
}
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